#!/usr/bin/python
class cfile:
    def __init__(self):


        self.filemame='./file/letter.txt'

    def file(self):
        return self.readfile()


    def readfile(self):
        with open(self.filemame, 'r', encoding='UTF-8') as f:
            content = f.read()
            f.close()
            return content
    def writefile(self,content):
        with open(self.filemame, 'w', encoding='UTF-8') as f:
            f.write(content)
            f.close()



if __name__ =='__main__':
    self.filemame='../file/letter.txt'
    
    










  